https://scholars.lib.ntu.edu.tw/handle/123456789/388689
標題: | Highly efficient tandem organic light-emitting devices utilizing the connecting structure based on n-doped electron-transport layer/HATCN/hole-transport layer | 作者: | Yi-Lin Wu Chien-Yu Chen Yi-Hsiang Huang Yin-Jui Lu Cheng-Hsu Chou CHUNG-CHIH WU |
公開日期: | 八月-2014 | 卷: | 53 | 期: | 22 | 起(迄)頁: | E1-E6 | 來源出版物: | Applied Optics | 摘要: | In this work, we conducted studies of tandem organic light-emitting devices (OLEDs) based on the connecting structure consisting of n-doped electron-transport layer (n-ETL)/1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile (HATCN)/hole-transport layer. We investigated effects of different n-ETL materials and different HATCN thicknesses on characteristics of tandem OLEDs. Results show that the tandem OLEDs with n-BPhen and a 20 nm layer of HATCN in the connecting structure exhibited the best performance. With these, highly efficient and bright green phosphorescent two-emitting-unit tandem OLEDs, with drive voltages significantly lower than twice that of the single-unit benchmark device and current efficiencies higher than twice that of the single-unit benchmark device, were demonstrated. © 2014 Optical Society of America. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/388689 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84942374453&doi=10.1364%2fAO.53.0000E1&partnerID=40&md5=32b24d2204df151814069af4a7d73510 |
DOI: | 10.1364/AO.53.0000E1 | SDG/關鍵字: | Current density; Doping (additives); Electron transport properties; Light emission; Current efficiency; Drive voltage; Electron transport layers; N-doped; Organic light-emitting devices; Structure-based; Organic light emitting diodes (OLED) |
顯示於: | 電機工程學系 |
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